The radio on occasion started to display "Please insert correct media" "EC 123" "EC 11D" and was getting more frequent to the point that it now occurs almost every time I start the vehicle. From what I was reading the only way to fix this is replacing the head unit. I've tried removing the battery, removing the attached USB drive and still nothing. I even tried to reset the unit when I was able to get into the radio but that didn't help either.

If you leave the radio on while you shut your car off, even if the error displays on the next startup, the radio works. You just can't do anything with the head unit such as raising the volume etc. This seems like a bug in the FW and should be provided to us to flash or have the dealer flash the unit free of charge. If the common response from the dealers are not to use the USB/Bluetooth, then why bother to have the options on the radio?

Radio kaput for a car of this quality is unacceptable. Aside from the obvious lack of driving pleasure, there is also the loss of the hands-free Bluetooth capability used to synchronize with a mobile phone--eliminating the need to possibly fumble with a phone while driving (which you are not supposed to do in any case). The ability to pair the phone with Bluetooth might be considered a safety feature. There are several Toyota 2012 Camry owners who have similar complaints about the radio. The problem suggests either a design flaw or a poor choice of radio for this otherwise fantastic and reliable vehicle. I should add that all of the obvious troubleshooting was done and eliminated as a possible cause of the problem. To wit: 1) the negative cable was disconnected from the battery and the brake pedal was pumped numerous times (i did this one twice); 2) all fuses that have any relationship with the radio were pulled and checked according to the owner's manual; 3) the rear speakers, accessed via the trunk of the vehicle, were inspected for disconnected wires. Check, check, check. Finally, I also checked the radio controls to ensure that the mute button was not accidentally on. Check. No sound, and we are now considering replacing the stock radio.